Means for anchoring structural elements to concrete supporting bodies



Feb. 15, was. R J 0;; WE 210mm MEANS FOR ANCHORING STRUCTURAL ELEMENTSTO CONCRETE SUPPORTING BODIES Filed Dec. 2, 1935 j w 1 155 INVENTOR:filiwaseZZ Weq 11 ATTORNEY.

Patented Feb. 15, 1938 UNITED STATES PATET OFFHCE MEANS FOR ANCHORINGSTRUCTURAL ELEMENTS T BODIES GONCRETE SUPPORTING 2 Claims.

This invention relates to means for anchoring structural elements toconcrete supporting bodies.

It has more particularly to do with improving the means of anchorage formasonry, in outside 5 wall construction of buildings and the like, andalso for interior wall and ceiling elements, floors, et cetera.

In concrete supporting body and frame structures it is a common practiceto embed within the body of concrete a metal channel-formed insert ofangular shouldered cross section to function as a lining andreinforcement of an undercut continuous groove or slot in whichanchoring or tie members having counterpart or otherwise 5 formedengaging portions are received and ad justably supported, said anchoringor tie members being provided in or on their portions outside of saidundercut or interiorly shouldered groove or slot with means for securingthe masonry or other wall or ceiling elements, and the like.

The customary procedure in applying the lining inserts, which areusually formed of comparatively thin gauge sheet metal of justsufficient inherent rigidity to retain the shape in which the device isformed under reasonably normal conditions and handling, is to nail orotherwise secure the device to the ordinary form board usually employedin pouring and packing the con crete material in forming the structure,that is to say, with the open side of the device disposed against theface of the form board with the object of preventing the concretematerial from entering the interior of device.

Owing to the relatively rough character of concrete construction work itis difficult to maintain a sufficiently tight contact of the ordinarylining insert with the face of the concrete form board at all pointsthroughout its length, due to the irregularities in the surface of theboard and also to the distortion and deformation of the insert in thepouring and tamping of the concrete material, with the deleteriousresult that the concrete material enters and clogs the channel designedto be produced, and obviously, there is incurred the added expense ofremoving the material irom the channel after the form board is removed,which operation requires not only time, but care and skill. So, too,without close supervision, there is the liability of some mechanics toshirk the work of removing the material and should there be anobstruction at the point where an anchoring element is to be appliedthere is the possibility that the anchoring element will be omitted whenthe wall masonry element should 55 be'tied in place or in the placing ofother wall or ceiling elements. Furthermore, even if the sheet metalchanneled insert is tightened throughout its length against the face ofthe concrete form board, it sometimes happens that the side walls of theinsert are pressed inwardly to such degree of deformation that it isdiflicult or even practically impossible to apply an anchoring elementin the region necessary for the tying of a masonry element or other wallor ceiling element, as the case may be, and to avoid which happening ithas been found necessary to make the insert of heavier gauge sheet metalthan would otherwise be required.

The principal object of the present invention is to overcome thedisadvantages herein noted and permit constructing the channeled metalinsert of relatively lighter gauge sheet metal than heretofore used; toprovide not only for preventing the entrance of concrete material intothe channel but at the same time prevent collapsing of the side walls ofthe insert during the pouring of the concrete material as well as in thehandling of the insert prior to and while it is being nailed orotherwise attached to the concrete form board, and particularlyfacilitating the cutting of the inserts into different lengths for thework required without liability of deforming the insert; and to attaincertain other objects and advantages as will hereinafter more fullyappear in the following description.

The invention consists in the novel general provision of a filler memberof a removable character for channeled metal inserts for the purposesdescribed, and in the parts and combinations and arrangements of partshereinafter specified and afterwards set forth with particularity in theappended claims.

In the accompanying drawing forming part of the specification andillustrating practical adaptations of the invention,

Figure 1 is a fragmentary section of a concrete structural body with achanneled lining insert therein and showing the concrete form board ascooperatively applied;

Figure 2 is a view similar to Figure l, but with the concrete form boardand filler member removed and an anchoring element shown as applied tothe insert-lined channel of the concrete body and the application of theanchoring element to the positioned'masonry element;

Figure 3 is a perspective view of a fragmentary portion of the channeledlining insert, detached;

Figure 4 is a perspective view of a fragmentary portion of the fillermember for the channeled lining insert, detached;

Figure 5 is a perspective view of one preferred form of anchoringelement, detached;

Figure 6 is a perspective view of a modified form of anchoring element,detached; and

Figure '7 is a fragmentary view, in cross section, showing amodification of the channeled lining insert, filler member, and mannerof attaching the concrete form board,

Referring now more particularly to Figures l to 5, inclusive, of thedrawing, the numeral l designates an ordinary concrete structural bodyhaving embedded therein a channeled sheet metal insert 2, which latter,as shown in Figures 1, 2 and 3, is formed rectangularly, as at 3, withone of its longer sides slotted, as at 3, and at opposite sides of theslot provided with parallel perpendicular flanges 5.

At intervals, longitudinally and at the middle of the body portion ofthe insert 2, there is provided a series of apertures ii for thereception of nails, screws or other securing elements, as will be latermore fully described, said apertures eing alined medially with respectto the slot 4 of the insert.

When the insert 2 is embedded in the concrete body I (see Figure 2) itconstitutes a lining and reinforcement for an undercut groove or slot inthe concrete body, the preferred practical form thereof beingsubstantially T-shape, as shown, and the preferred form of anchorelement, as shown at l, in Figures 2 and 5, having a counterpart neckand head portion to fit in said insert 2 relatively closely and withonly slight looseness to permit insertion of the anchor element edgewisethrough the slot 5 to place the head portion 8 within the rectangularportion 3 of the insert 2 and the turning of the element l' until itshead portion 3 is flatwise transversely of said rectangular portion 3and its neck portion 9 is correspondingly positioned between the flanges5 of the insert 2, as shown in Figure 2.

The outer portion of the anchor element 7 which engages the masonryelement, indicated at It] in Figure 2, may be of any desired or approvedform. However, for more general purposes, and as found practical, theanchor element 1 is preferably made substantially I-shape as shown inFigures 2 and 5, that is to say, with both end portions alike, wherebyeither end portion may be secured in the channeled lining insert 2 and,too, either end portion may be utilized for tying the masonry elementill or other wall or ceiling element in place, as the case may be, tothe concrete body i.

In Figure 6 a modification of the anchor element is shown, wherein thereis a head portion i3 connected by a neck portion 9 to a body plate orenlargement H provided at its end with oppositely turned lugs or flangesi2, i3, respectively, for attachment to the masonry element or otherwall or ceiling element to be tied to the concrete body, the headportion 8 and neck portion 9 obviously, fitting the channeled lininginert 2 in the same manner as the portions 3 and 9 of the firstdescribed anchor element 1.

Obviously, other modifications of the anchor element may be made andsubstituted for those herein illustrated within the purview of thepresent invention, the principal object of which is to prevent theconcrete material from entering the channeled lining insert and/or thecollapsing and deformation of the insert in the preliminary handlingthereof as well as in its application to the concrete form board inproducing the concrete body in which the insert is placed.

Prior to its attachment to the concrete form board, indicated at M, inFigure l, a wooden or other removable filler member is placed in theslotted portion of the channeled lining insert 2. Preferably, as shown,the filler member, indicated by the numeral [5, is made of wood andrectangular in cross section (see Figure 4) and fitted into the insert 2as shown in Figure 1, said filler member l5 being of transverse orcrosssectional dimensions to fit tightly between the flanges 5 of theinsert 2 by being forced into place but without appreciable spreading ofsaid flanges 5 or causing other deformation of the insert, and, when inplace, one of the narrower sides of the filler member abuts the innerface of the body plate portion of the insert 2 and the opposite narrowerside is flush with the margins of the flanges 5.

The channeled metal insert 2, with the filler member l5 placed therein,is applied to the concrete form board i l by driving nails l6 throughthe apertures 5 in the body plate portion of the insert, into andthrough the filler member l5, and into the form board 14 (see Figure l),the apertures 6 being of larger diameter, respectively, than the headsof the nails 16, whereby, when the concrete material has been poured andthe body 2 set, and the form board is removed, the filler member I5 ismost invariably withdrawn from the insert 2 with the form board.However, should the filler member 5, for any reason stick in the insert2 and the form board I4 be pulled from the nails i6 while it is beingremoved from the concrete body i, the filler member I5 is readilyremoved afterwards from the insert 2 by applying a gripping tool of somekind to the protruding portions of the nails 56 or by other meansapplied directly to the filler member.

As shown in Figure '7, the channeled sheet metal insert 2 may bemodified by rebending or folding the metal at the bases of the flanges5, as at ll, thereby producing shoulders against which a modified fillermember W is made to abut when placed in between said flanges 5. In thismodification less wood or other material is required for the fillermember and yet a substantial reinforcement is provided to preventcollapsing or deformation of the insert and it is just as eifective inpreventing entrance of the concrete material into the channel of theinsert as in the applica tion of the filler member 15 as shown inFigure 1. It is noted that in this modification illustrated in Figure 7the nail H3 is driven through the form board 14 into the filler memberI5 Obviously, when the form board is withdrawn from the concrete body inwhich the insert 2 is embedded, as in Figure l, the filler member i5 ismost invariably withdrawn from the insert with the form board, butshould the filler member happen to stick and the nails 16 be pulledtherefrom, said filler member may be readily removed by a separateoperation,

The devices illustrated may be modified in many respects within thespirit and scope of the invention as defined in the appended claims. Theinvention, therefore, is not limited to the specific constructions andarrangements shown in the accompanying drawing.

What is claimed is:

1. An insert for forming a continuous groove or channel in a concretestructure, said insert consisting of a shell of substantial T-shape, oneside thereof having a longitudinal opening, a filler element ofrectangular cross-section fitted in said opening to normally close saidopening and prevent deformation of the insert.

2. An insert for forming a continuous groove or channel in concretestructures, said insert comprising a shell-like rectangular body portionhaving a longitudinal slot in one side, perpendicular flanges at eachside of the slot, and a plurality of apertures in the opposite side ofthe body, said apertures alined medially with respect to the slot, anelongated wooden filler element conformably receivable in said slot,said filler element adapted to be attached to a form board by nailingthrough said apertures, and said apertures of larger diameter than thenail heads.

RUSSELL J. DE WEES.

